This blog post is not related to database upgrades and migrations. But still I think it is very useful for many customers operating on modern Linux systems.
Recommendation
Support just published an ALERT strongly recommending to disable Transparent Hugepages on Linux systems. And the below information does not apply to RAC systems only but also to single instance environments.
Which Linux Distrubutions/Kernels are affected?
- SLES11
- RHEL6 and RHEL7
- OL6 and OL7
- UEK2 Kernels
What are the Issues?
I’m quoting MOS Note: 1557478.1 (ALERT: Disable Transparent HugePages on SLES11, RHEL6, RHEL7, OL6, OL7 and UEK2 Kernels):
… Continue reading...Because Transparent HugePages are